More than 900 physicians, researchers, nurses and other health care workers from institutions, facilities and organizations tackling HIV around the world sent a letter to President Obama today expressing horror over anti-homosexuality laws recently passed in Uganda and Nigeria and urging the president to follow words condemning the laws with action.

The new laws in both countries add penalties to existing colonial era anti-homosexuality laws, and also crimininalize support for gay individuals. In their letter, clinicians and researchers from the University of Alabama, Yale, Harvard, Johns Hopkins University, and other health research centers, as well as AIDS-fighting clinics, hospitals, and organizations from Hawaii to Zimbabwe, ask the Obama administration to “follow up immediately” with resources to support and protect those who will be affected. Signers also ask the administration to redirect funding from organizations supporting the laws, and to continue to pressure both countries to reverse the laws.

“We write without reservation,” the letter says, “That we abhor these morally repugnant laws that place these nations on the wrong side of history.” For the rest of the letter, click here.